var _foo = /*#__PURE__*/babelHelpers.classPrivateFieldLooseKey("foo"); let Foo = /*#__PURE__*/function () { "use strict"; function Foo() { babelHelpers.classCallCheck(this, Foo); Object.defineProperty(this, _foo, { value: _foo2 }); } babelHelpers.createClass(Foo, [{ key: "test", value: function test(other) { return Object.prototype.hasOwnProperty.call(other, _foo); } }]); return Foo; }(); function _foo2() {}